Three posts landed in September that I think engineering leaders should read together. Anthropic’s engineering team wrote that their continuous integration (CI) job volume grew 25x in six months . Their engineers now ship about 8x as much code per quarter as they did from 2021 to 2025. The fix they shipped was test impact analysis: run only the tests a change could affect. A week later, Linear published a post titled AI coding has made CI a bottleneck . Their test suite has nearly quadrupled since January, and agents now write most of their tests. They reworked the pipeline end to end to keep...

Source: The New Stack